Complex Envelope Weaker HIE With Higher Order PML Algorithm for FDTD Simulation

被引：4

作者：

Wu, Peiyu ^{[1
,2
]}

Xie, Yongjun ^{[1
,2
]}

Jiang, Haolin ^{[3
]}

Zhang, Jian ^{[4
]}

Chen, Jie ^{[1
]}

Natsuki, Toshiaki ^{[5
,6
]}

机构：

[1] Beihang Univ, Sch Elect & Informat Engn, Beijing 100191, Peoples R China

[2] Beihang Univ, Shenzhen Inst, Shenzhen 518000, Peoples R China

[3] Nanjing Univ Informat Sci & Technol, Sch Elect & Informat Engn, Nanjing 210096, Peoples R China

[4] Nanjing Normal Univ, Sch Elect & Automat Engn, Nanjing 210023, Peoples R China

[5] Shinshu Univ, Fac Text Sci & Technol, Ueda 3868567, Japan

[6] Shinshu Univ, Inst Carbon Sci & Technol, Nagano 3808553, Japan

来源：

IEEE MICROWAVE AND WIRELESS TECHNOLOGY LETTERS | 2023年 / 33卷 / 03期

基金：

中国国家自然科学基金;

关键词：

Complex envelope (CE); finite-difference time-domain (FDTD); perfectly matched layer (PML); weaker hybrid implicit-explicit (WHIE); IMPLICIT-EXPLICIT PROCEDURE; PERFECTLY MATCHED LAYER; TIME-DOMAIN METHOD; DISPERSION ANALYSIS; SCHEME; IMPLEMENTATION; ABSORPTION; UNSPLIT;

D O I：

10.1109/LMWC.2022.3217349

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

Weaker hybrid implicit-explicit (WHIE) algorithm with complex envelope (CE) method is proposed for structures with fine details along a single direction in bandpass problems. Higher order perfectly matched layer (PML) formulation is proposed for absorption improvement in open regions. By introducing alternating-direction implicit (ADI) discretized form and adding proper disturbance terms, it can obtain relaxed stability condition under the same Courant-Friedrichs-Levy (CFL) numbers (CFLNs) compared with the other implicit algorithms resulting in the improvement of efficiency. Furthermore, time step can also be enlarged according to the bandpass lowpass-sampling theorem which improves the efficiency in bandpass circumstances.

引用

页码：251 / 254

页数：4

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